CBSE · Class 12
Lessons of CBSE Class 12: simple summaries, tricks, solved examples and practice questions with answers. Reading the summaries is free.
Class 12 plan: ₹789 / yearAll tests for 1 year. Summaries and the first test of every lesson are free.
Start in the appPhysics 14 lessons
Chapter 1: Electric Charges and Fields6 conceptsChapter 2: Electrostatic Potential and Capacitance7 conceptsChapter 3: Current Electricity7 conceptsChapter 4: Moving Charges and Magnetism7 conceptsChapter 5: Magnetism and Matter4 conceptsChapter 6: Electromagnetic Induction6 conceptsChapter 7: Alternating Current7 conceptsChapter 8: Electromagnetic Waves3 conceptsChapter 9: Ray Optics and Optical Instruments7 conceptsChapter 10: Wave Optics4 conceptsChapter 11: Dual Nature of Radiation and Matter5 conceptsChapter 12: Atoms5 conceptsChapter 13: Nuclei5 conceptsChapter 14: Semiconductor Electronics: Materials, Devices and Simple Circuits4 concepts
Biology 13 lessons
Chapter 1: Sexual Reproduction in Flowering Plants6 conceptsChapter 2: Human Reproduction6 conceptsChapter 3: Reproductive Health5 conceptsChapter 4: Principles of Inheritance and Variation8 conceptsChapter 5: Molecular Basis of Inheritance8 conceptsChapter 6: Evolution6 conceptsChapter 7: Human Health and Disease7 conceptsChapter 8: Microbes in Human Welfare3 conceptsChapter 9: Biotechnology: Principles and Processes4 conceptsChapter 10: Biotechnology and its Applications4 conceptsChapter 11: Organisms and Populations4 conceptsChapter 12: Ecosystem6 conceptsChapter 13: Biodiversity and Conservation6 concepts
Chemistry 10 lessons
Unit 1: Solutions6 conceptsUnit 2: Electrochemistry6 conceptsUnit 3: Chemical Kinetics5 conceptsUnit 4: The d- and f-Block Elements6 conceptsUnit 5: Coordination Compounds6 conceptsUnit 6: Haloalkanes and Haloarenes6 conceptsUnit 7: Alcohols, Phenols and Ethers6 conceptsUnit 8: Aldehydes, Ketones and Carboxylic Acids6 conceptsUnit 9: Amines5 conceptsUnit 10: Biomolecules5 concepts
Mathematics 52 lessons
Types of Relations (Ch 1: 1.2)3 conceptsTypes of Functions (Ch 1: 1.3)3 conceptsComposition and Invertible Functions (Ch 1: 1.4)2 conceptsInverse Trigonometric Functions: Principal Values (Ch 2: 2.2)3 conceptsProperties of Inverse Trigonometric Functions (Ch 2: 2.3)3 conceptsMatrix, Order and Types of Matrices (Ch 3: 3.2–3.3)3 conceptsAddition and Scalar Multiplication of Matrices (Ch 3: 3.4.1–3.4.4)2 conceptsMultiplication of Matrices (Ch 3: 3.4.5–3.4.6)2 conceptsTranspose, Symmetric and Skew Symmetric Matrices (Ch 3: 3.5–3.6)2 conceptsInvertible Matrices (Ch 3: 3.7)2 conceptsDeterminant of a Square Matrix (Ch 4: 4.2)3 conceptsArea of a Triangle Using Determinants (Ch 4: 4.3)2 conceptsMinors and Cofactors (Ch 4: 4.4)2 conceptsAdjoint and Inverse of a Matrix (Ch 4: 4.5)2 conceptsSystems of Linear Equations by the Matrix Method (Ch 4: 4.6)2 conceptsContinuity (Ch 5: 5.2)2 conceptsDifferentiability and Chain Rule (Ch 5: 5.3 to 5.3.1)2 conceptsImplicit and Inverse Trigonometric Differentiation (Ch 5: 5.3.2–5.3.3)2 conceptsExponential, Logarithmic and Logarithmic Differentiation (Ch 5: 5.4–5.5)2 conceptsParametric Functions and Second Order Derivatives (Ch 5: 5.6–5.7)2 conceptsRate of Change of Quantities (Ch 6: 6.2)2 conceptsIncreasing and Decreasing Functions (Ch 6: 6.3)2 conceptsLocal Maxima and Minima (Ch 6: 6.4)2 conceptsAbsolute Maximum and Minimum in a Closed Interval (Ch 6: 6.4.1)2 conceptsIntegration as the Inverse of Differentiation (Ch 7: 7.2)2 conceptsIntegration by Substitution (Ch 7: 7.3.1)2 conceptsIntegration Using Trigonometric Identities (Ch 7: 7.3.2)2 conceptsIntegrals of Some Particular Functions (Ch 7: 7.4)3 conceptsIntegration by Partial Fractions (Ch 7: 7.5)2 conceptsIntegration by Parts (Ch 7: 7.6)3 conceptsDefinite Integral and the Fundamental Theorem of Calculus (Ch 7: 7.7–7.8)2 conceptsDefinite Integrals by Substitution and Their Properties (Ch 7: 7.9–7.10)2 conceptsArea Under Simple Curves (Ch 8: 8.2)3 conceptsOrder, Degree and Solutions of Differential Equations (Ch 9: 9.2–9.3)2 conceptsVariables Separable Differential Equations (Ch 9: 9.4.1)2 conceptsHomogeneous Differential Equations (Ch 9: 9.4.2)2 conceptsLinear Differential Equations (Ch 9: 9.4.3)2 conceptsVectors: Basic Concepts and Types (Ch 10: 10.2–10.3)2 conceptsAddition of Vectors and Multiplication by a Scalar (Ch 10: 10.4–10.5)2 conceptsVector Joining Two Points and the Section Formula (Ch 10: 10.5.1–10.5.3)2 conceptsScalar (Dot) Product and Projection (Ch 10: 10.6.1–10.6.2)2 conceptsVector (Cross) Product (Ch 10: 10.6.3)2 conceptsDirection Cosines and Direction Ratios of a Line (Ch 11: 11.2)2 conceptsEquation of a Line in Space (Ch 11: 11.3)2 conceptsAngle Between Two Lines (Ch 11: 11.4)2 conceptsShortest Distance Between Two Lines (Ch 11: 11.5)2 conceptsLinear Programming: Formulation and Graphical Method (Ch 12: 12.2)2 conceptsConditional Probability (Ch 13: 13.2)2 conceptsMultiplication Theorem and Independent Events (Ch 13: 13.3–13.4)2 conceptsBayes' Theorem and the Theorem of Total Probability (Ch 13: 13.5)2 conceptsProofs in Mathematics (Appendix 1)2 conceptsMathematical Modelling (Appendix 2)2 concepts